/*
 * Copyright (c) 2002-2012 Alibaba Group Holding Limited.
 * All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.sample.petstore.dal.dataobject;

import java.io.Serializable;
import java.math.BigDecimal;

public class CartItem implements Serializable {
    private static final long serialVersionUID = -8518016753555699796L;
    private           String      productItemId;
    private           int         quantity;
    private transient ProductItem item;

    public CartItem(String productItemId) {
        this.productItemId = productItemId;
    }

    public String getProductItemId() {
        return productItemId;
    }

    public ProductItem getProductItem() {
        return item;
    }

    public void setProductItem(ProductItem item) {
        this.item = item;
    }

    public int getQuantity() {
        return quantity;
    }

    public void setQuantity(int quantity) {
        this.quantity = quantity;
    }

    public void incrementQuantity() {
        quantity++;
    }

    public BigDecimal getTotal() {
        if (item == null) {
            return new BigDecimal(0);
        }

        return item.getListPrice().multiply(new BigDecimal(quantity));
    }
}
